SB2022110345 - Anolis OS update for kernel(ANCK)4.19
Published: November 3, 2022 Updated: March 28, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 25 secuirty vulnerabilities.
1) Out-of-bounds write (CVE-ID: CVE-2021-33656)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error when setting font with malicous data by ioctl cmd PIO_FONT. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
2) Improper access control (CVE-ID: CVE-2021-4037)
The vulnerability allows a local user to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in the fs/inode.c:inode_init_owner() function logic of the Linux kernel. A local user can create files for the XFS file-system with an unintended group ownership and with group execution and SGID permission bits set to bypass implemented security restrictions and gain unauthorized access to the application.
3) Security restrictions bypass (CVE-ID: CVE-2018-13405)
The vulnerability allows a local attacker to create arbitrary files on the target system.
The vulnerability exists due to the inode_init_owner function, as defined in the fs/inode.c source code file, allows the creation of arbitrary files in set-group identification (SGID) directories. A local attacker can create arbitrary files with unintended group ownership.
4) Memory leak (CVE-ID: CVE-2021-4159)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due memory leak in Linux kernel EBPF verifier when handling internal data structures. A local user with permissions to insert eBPF code to the kernel can force the kernel to leak internal kernel memory details and bypass mitigations, related to exploitation protection.
5) Use-after-free (CVE-ID: CVE-2022-1048)
The vulnerability allows a local user to execute arbitrary code with elevated privileges.
The vulnerability exists due to a use-after-free error in the Linux kernel’s sound subsystem in the way a user triggers concurrent calls of PCM hw_params. A local user can execute arbitrary code with elevated privileges and perform a denial-of-service attack.
6) Use-after-free (CVE-ID: CVE-2022-1184)
The vulnerability allows a local user to perform a denial of service attack.
The vulnerability exists due to a use-after-free error in fs/ext4/namei.c:dx_insert_block() function in the Linux kernel’s filesystem sub-component.. A local user can trigger use-after-free and perform a denial of service attack.
7) Use-after-free (CVE-ID: CVE-2022-1198)
The vulnerability allows a local user to perform a denial of service attack.
The vulnerability exists due to a use-after-free error in the drivers/net/hamradio/6pack.c. A local user can perform a denial of service (DoS) attack by simulating Amateur Radio.
8) Out-of-bounds read (CVE-ID: CVE-2022-1462)
The vulnerability allows a local user to perform denial of service (DoS) attack.
The vulnerability exists due to a boundary condition within the the Linux kernel’s TeleTYpe subsystem caused by a race condition when using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory file. A local user can trigger an out-of-bounds read error and crash the system or read random kernel memory.
9) Use-after-free (CVE-ID: CVE-2022-1679)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ath9k_htc_wait_for_target() function in the Linux kernel’s Atheros wireless adapter driver. A local user can execute arbitrary code with elevated privileges.
10) Use-after-free (CVE-ID: CVE-2022-1734)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to Marvell NFC device driver implementation in the Linux kernel did not properly perform memory cleanup operations in some situations. A local user can trigger use-after-free to escalate privileges on the system.
11) NULL pointer dereference (CVE-ID: CVE-2022-2153)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the Linux kernel’s KVM when attempting to set a SynIC IRQ. A local user on the host can issue specific ioctl calls, causing a denial of service.
12) Use-after-free (CVE-ID: CVE-2022-2318)
The vulnerability allows a local user to perform a denial of service attack.
The vulnerability exists due to a use-after-free error caused by timer handler in net/rose/rose_timer.c of linux. A local user can exploit the vulnerability to perform a denial of service attack.
13) Release of invalid pointer or reference (CVE-ID: CVE-2022-24958)
The vulnerability allows remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to release of illegal memory vulnerability in the drivers/usb/gadget/legacy/inode.c. A remote attacker can send specially crafted data and perform a denial of service (DoS) attack.
14) NULL pointer dereference (CVE-ID: CVE-2022-25258)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error drivers/usb/gadget/composite.c in the Linux kernel. The USB Gadget subsystem lacks certain validation of interface OS descriptor requests (ones with a large array index and ones associated with NULL function pointer retrieval). A local user can run a specially crafted program to trigger memory corruption and perform a denial of service (DoS) attack.
15) Double Free (CVE-ID: CVE-2022-2588)
The vulnerability allows a local user to escalate privileges on the system.
The
vulnerability exists due to a double free error within the network packet scheduler implementation
in the route4_change() function in Linux kernel when removing all references to a route filter
before freeing it. A local user can run a specially crafted program to
crash the kernel or execute arbitrary code.
16) Use-after-free (CVE-ID: CVE-2022-2602)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error caused by an io_uring request, which is being processed on a registered file. The Unix GC runs and frees the io_uring file descriptor and all the registered file descriptors in a specific order that may allow a local user to win a race and execute arbitrary code with elevated privileges.
17) Buffer overflow (CVE-ID: CVE-2022-26490)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the st21nfca_connectivity_event_received() function in drivers/nfc/st21nfca/se.c in Linux kernel. A local user can run a specially crafted program to trigger buffer overflow and execute arbitrary code with elevated privileges.
18) Improper Validation of Array Index (CVE-ID: CVE-2022-27223)
The vulnerability allows a remote attacker to execute arbitrary code with elevated privileges.The vulnerability exists due to improper validation of array index in drivers/usb/gadget/udc/udc-xilinx.c in the Linux kernel. A remote attacker can send specially crafted data to the system and execute arbitrary code with elevated privileges.
19) Double Free (CVE-ID: CVE-2022-28388)
The vulnerability allows a local user to execute arbitrary code with elevated privileges.
The vulnerability exists due to boundary error in the usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c. A local user can pass specially crafted data to the application, trigger double free error and execute arbitrary code with elevated privileges.
20) Double Free (CVE-ID: CVE-2022-28389)
The vulnerability allows a local user to execute arbitrary code with elevated privileges.
The vulnerability exists due to boundary error in mcba_usb_start_xmit in drivers/net/can/usb/mcba_usb.c. A local user can pass specially crafted data to the application, trigger double free error and execute arbitrary code with elevated privileges.
21) Double Free (CVE-ID: CVE-2022-28390)
The vulnerability allows a local user to execute arbitrary code with elevated privileges.
The vulnerability exists due to boundary error in ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c. A local user can pass specially crafted data to the application, trigger double free error and execute arbitrary code with elevated privileges.
22) Incorrect default permissions (CVE-ID: CVE-2022-30594)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to mishandling seccomp permissions. A local user can bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag and escalate privileges on the system.
23) NULL pointer dereference (CVE-ID: CVE-2022-3202)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in diFree in fs/jfs/inode.c in Journaled File System (JFS) in the Linux kernel. A local user can perform a denial of service (DoS) attack.
24) Input validation error (CVE-ID: CVE-2022-36946)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the nfqnl_mangle() function in net/netfilter/nfnetlink_queue.c in the Linux kernel when processing IPv6 packets. A remote attacker can send specially crafted packets to the system and perform a denial of service (DoS) attack.
25) Race condition (CVE-ID: CVE-2022-39188)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition within include/asm-generic/tlb.h in the Linux kernel. A local user can exploit the race and escalate privileges on the system.
Note, this only occurs in situations with VM_PFNMAP VMAs.
Remediation
Install update from vendor's website.